Saturday, January23, 2021
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Marine Weather and Tides
Mashantucket, CT

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:05AMSunset 4:54PM Saturday January 23, 2021 12:23 PM EST (17:23 UTC) Moonrise 1:34PMMoonset 3:37AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ237 Block Island Sound- 1016 Am Est Sat Jan 23 2021
.gale warning in effect through Sunday afternoon...
This afternoon..NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Light freezing spray.
Tonight..NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Light freezing spray.
Sun..NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft. Light freezing spray.
Sun night..NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Light freezing spray.
Mon..NW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft.
Mon night..N winds around 10 kt, becoming ne after midnight. Seas around 2 ft.
Tue..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow and rain. Vsby 1 to 3 nm.
Tue night through Wed night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 1016 Am Est Sat Jan 23 2021
Synopsis for massachusetts and rhode island coastal waters.. Low pres over the maritimes moves little through the weekend, while high pres over the great lakes settles over the waters by Mon. Weak low pres passes across the southern offshore waters on Tues. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo.


7 Day Forecast for Marine Location Near Mashantucket, CT
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location: 41.46, -71.97     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 231537 AFDOKX

Area Forecast Discussion National Weather Service New York NY 1037 AM EST Sat Jan 23 2021

SYNOPSIS. Low pressure slowly weakens over the Canadian Maritimes this weekend, while high pressure builds in from the west. The high weakens Sunday night and Monday as low pressure approaches. The low passes south of the area Monday night into Tuesday night. High pressure returns Wednesday through Friday. Another low may move south of the region Thursday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. The main change this update was to be less aggressive with the cloud cover today based on latest satellite imagery and mid level shortwave trough exiting by early afternoon.

The combination of high pressure building in from the west and low pressure gradually weakening over the Canadian Maritimes this weekend, will result in a decent pressure gradient across the area through this afternoon. Gusty NW winds are expected through the day and into the evening, gusting 30-35 mph.

Skies will generally remain mostly sunny through the day save for any midlevel stratocumulus during the afternoon that advects in from the northwest. High temperatures will struggle to get into the upper 20s to low 30s, with wind chills in the upper teens today under the brisk northwest flow.

SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY NIGHT/. High pressure continues to build in from the west Saturday night into Sunday morning with dry conditions in store. Low temperatures Sunday morning will be quite cold, in the low teens to near 20 across NYC and western Long Island, under mostly clear skies. Winds should stay up into Sunday morning, which may temper lows a bit. Wind chills will be in the single digits to the low teens. For now went with NBM temperatures, and adjusted toward lower MOS values, especially across the interior and SW CT.

The gusty NW winds will continue overnight Saturday and into the day on Sunday, though less so than on Saturday, 20-25 mph and finally beginning to taper by Sunday evening. Highs on Sunday will moderate somewhat into the lower and middle 30s, closer to normal for this time of year.

LONG TERM /MONDAY THROUGH FRIDAY/. Progressive flow will dominate across the country with near zonal flow. A shortwave moves into the ridge through Monday, reaching the Ohio Valley by 00Z Tuesday. This shortwave passes through the area during Tuesday. Guidance has come into better consensus with the track of the upper ridge and the track and depth of the surface low. There still is some uncertainty with the track and how the system will interact with the northern stream broad longwave trough. The trend has been for a more northern track. At this time the column will remain cold enough for an all light snow event. However, if the northern stream is weaker the storm may track farther north and mixing will be possible along the coast. And if the blocking remains in place with a stronger northern stream, the low will track farther to the south. At this time the precipitation begins Monday evening and continues into early Tuesday evening, with a prolonged period of light snow. Another low does begin to develop off the mid Atlantic coast early Tuesday, and with the progressive flow moves quickly east into the Atlantic. Again, on the current track the potential for higher impacts will be across areas north and west, with lower impacts to areas east of New York City, and portions of southeastern Connecticut, as high pressure remains to the north.

High pressure and a building upper ridge return for Wednesday. Then another southern system quickly moves into the ridge Wednesday night into Thursday, with the potential for another surface low tracking south of the area. Then high pressure returns for Friday.

AVIATION /16Z SATURDAY THROUGH WEDNESDAY/. High pressure will gradually build in from the west while strong low pressure remains in the Canadian Maritimes through the TAF period.

This will set up a steep pressure gradient with gusty NW winds. Conditions are expected to remain VFR through the TAF period.

NW winds will be 15-20 kt this morning with gusts reaching near 25-30 kt late this morning into this afternoon. Some peak gusts between 30 and 35 kt can be expected this afternoon into early this evening. Gusts will lower to more within the 20-25 kt range late this evening and overnight. These gusts will persist into early Sunday.

. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty .

Timing of 30 kt gusts could be off by a few hours.

OUTLOOK FOR 12Z SUNDAY THROUGH WEDNESDAY. Sunday. VFR. WNW gusts 20-25 kt during the day, near 20kt for Sunday evening, gradually diminishing late evening into overnight. Monday. Mainly VFR, but MVFR/IFR developing by Monday evening into Monday night with increasing chances of snow. NW-N under 10 kt. Tuesday. IFR, at times possibly lower, in snow, mainly during the day, with NE winds 10-12 kt with gusts up to near 20 kt. Improving conditions at night with gusts diminishing. Wednesday. VFR. N winds 5-10 kt.

Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90

MARINE. High pressure is in control with strong NW flow through Sunday. Gales will persist across the ocean waters, the Eastern Sound and Peconic and Gardiners Bays today into Sunday. Elsewhere, SCA are forecast through Sunday. There is a chance of light freezing spray across the ocean waters and western LI Sound for a period late Saturday night into early Sunday, given the combination of subfreezing air temperatures, strong winds and wave action over these areas. Warm sea surface temperatures may mitigate this to be more scattered in nature across the waters.

Winds and ocean seas will be gradually diminishing below SCA levels by Monday morning as the pressure gradient weakens.

Sub SCA conditions are expected Monday through Tuesday. Ocean seas 5 to 6 feet will be possible Tuesday night into Wednesday, with marginal wind gusts, as northerly winds increase behind departing low pressure.

Small craft conditions will once again be possible on the ocean waters Thursday as winds and seas increase with a low that is expected to pass south of the waters.

HYDROLOGY. Mainly dry conditions are expected through the weekend. No hydrologic concerns are anticipated through next week.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . Small Craft Advisory until 11 AM EST Sunday for ANZ335-338-345. Gale Warning until 7 AM EST Sunday for ANZ330-340-350-353-355.



UPDATE . DW


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDLC3 - New London Ledge CT - Ledge Light Weather 12 mi28 min NW 28 G 36 29°F 1010.7 hPa-3°F
MTKN6 - 8510560 - Montauk, NY 28 mi53 min 30°F 39°F1013.7 hPa
QPTR1 - 8454049 - Quonset Point, RI 31 mi53 min WNW 14 G 19 30°F 41°F1011.9 hPa
NWPR1 - 8452660 - Newport, RI 34 mi53 min NW 14 G 22 29°F 40°F1011.9 hPa
NAXR1 - Narragansett Bay Reserve, RI 36 mi98 min NNW 9.9 32°F 1013 hPa11°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 36 mi53 min NW 8.9 G 16 31°F 1012.5 hPa
PRUR1 37 mi53 min 32°F 10°F
CPTR1 - 8452944 - Conimicut Light, RI 38 mi53 min W 19 G 27 29°F 40°F1011.3 hPa
PVDR1 38 mi53 min NW 13 G 24 31°F 1012.1 hPa9°F
FOXR1 - 8454000 - Providence, RI 39 mi53 min NNW 13 G 25 30°F 39°F1011.8 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi53 min WNW 22 G 28 31°F 1011.4 hPa
FRXM3 45 mi53 min 30°F 15°F
FRVM3 - 8447386 - Fall River, MA 46 mi53 min 30°F 41°F1012 hPa

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT10 mi27 minNW 25 G 3210.00 miFair and Windy31°F8°F38%1012.7 hPa
Westerly, Westerly State Airport, RI12 mi30 minWNW 11 G 2210.00 miFair28°F7°F41%1012.4 hPa
Willimantic, Windham Airport, CT23 mi31 minNW 18 G 2510.00 miFair and Breezy27°F8°F45%1013.8 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Tide / Current Tables for Norwich, Connecticut
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Norwich
Click for Map
Sat -- 02:37 AM EST     Moonset
Sat -- 05:30 AM EST     2.87 feet High Tide
Sat -- 07:07 AM EST     Sunrise
Sat -- 12:24 PM EST     0.27 feet Low Tide
Sat -- 12:33 PM EST     Moonrise
Sat -- 04:53 PM EST     Sunset
Sat -- 06:00 PM EST     2.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.91.52.12.52.82.82.62.21.81.30.70.30.30.71.21.61.92.121.71.51.10.7

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Sat -- 12:57 AM EST     0.00 knots Slack
Sat -- 02:37 AM EST     Moonset
Sat -- 03:49 AM EST     1.99 knots Max Flood
Sat -- 07:06 AM EST     Sunrise
Sat -- 07:15 AM EST     -0.00 knots Slack
Sat -- 10:22 AM EST     -2.45 knots Max Ebb
Sat -- 12:34 PM EST     Moonrise
Sat -- 01:53 PM EST     0.00 knots Slack
Sat -- 04:32 PM EST     1.77 knots Max Flood
Sat -- 04:53 PM EST     Sunset
Sat -- 07:53 PM EST     -0.00 knots Slack
Sat -- 10:43 PM EST     -2.01 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9011.821.71.10.3-0.8-1.9-2.4-2.3-1.8-0.90.11.11.71.71.40.8-0.1-1.1-1.9-2

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station




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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.